Change-gear mechanism.



G. A. EDDY &1. F. McNUTT.

' CHANGE GEAR MECHANISM.

APPLICATION F!LED JULY 23, 1912.

1,205,873. Patented Nov. 21, l916.

3 SHEETS-SHEET 0 f ffy/w27 gwaff W ZM G. A. EDDY & J. F. McNUTL CHANGE GEAR MECHANISM.

APPLncATmN F|LED1uLY2a.|912.

o'. Patented Nov. 21, 1916.

3 SHEETSMSHEET 2.

G. A. EDDY 1&1. F. MCNUTT.

CHANGE GEAR MECHANISM. APPucATIoN F|LEn1uLY23.19|z.

Patented Nov. 21, 1916.

js an si,

GERALD A. EDDY AND JOHN FRANKLIN MGNUTT, OF LGS ANGELES, CALIFORNIA,

ASSIGNORS OF ONE-THRD TO EDDY,

ons-THIRD 'ro Tensen J. Bunn, 10F

LOS ANGELES, CALIFORNIA, AND NETE-HRD T0 JOHN HETTERIVEANN, OF LOUIS- VILLE, KENTUCKY.

renners.

CHANGE-GEAR iunenenrsrvr.

Patenten uw. ai, 191e.

Application filed July 23, 1912. Serial No. 711,108.

fornia, have invented new and useful Im- Y provenients kin Change-Gear Mechanisms, of which the following is a specification.

This invention relates to certain improvements in the change gear mechanism for which Patent No. 1,002,503 was issued Sept. 5th, 1911 to Gerald A. Eddy, and the improvements constituting the subject matter of this application have to do mainly with changes in the machine set forth in said patent to render said machine more practical and positive in its, operation, surer in its result, less liable to wear, and more feasible of manufacture.

in the patent referred to there is set forth a change gear mechanism which consists in the combination of a manually operable member, which might be termed the driver or driving member; a secondary or driven member; f and locking means cooperating with the frame on which they are mounted and operable in such manner that the driven member may be locked to the frame or locked to the driving member and moved thereby. In our present invention we use fundamentally this same combination but have added thereto certain other` parts, the nature of which will appear in the following specification. lWe may here mention that the most important changes over the old device are as follows: an arrangement so that normally the driven member will be left in a position to throw the gears into their neutral position, and an arrangement whereby when any given speed is desired, a lever or button is pressed, corresponding to that speed; a positive and substantial holding means for hold ing the driven member in the neutral position until it is desired to put it into one of the speed positions: the arrangement of the whole machine in a case which forms a' sta tionary frame for the working parts 'instea d of having the working parts arranged as heretofore aroundv a stationary sector or frame; and certain specific features perfect. ed and made stronger andinade with better wearing' qualities. These. and many other features will be best understood from thek following specification taken in connection Figure 1 is a vertical section showing the general arrangement of our change gear mechanism on an automobile. Fig. 2 is a longitudinal section showing that portion of the device mounted upon the steering wheel. Fig. 3 is a plan view of the steering wheel and the connected portions of the device. Fig. l is an enlargement of portions of the showing of Fig. 3. Fig. 5 is a side elevation of the main portion of our change gear mechanism, showing its connections with the transmission gearing, this view being taken in an aspect opposite that of Fig. 1. Fig. 6 is a section taken on line SHG of Fig. 5. Fig. 7 is a section taken on line 7--7 of Fig. 6, the aspect of Fig.Y 7 beingopposite to that of Fig. 5 and the same as that of Fig. 1. This view shows the various parts in their normal positions when the transmission gears are in their neutral position. Figs. 8, 9 and 10 are sections taken similarly as Fig. 7 showing the parts in various positions. Fi 11 is a view taken on line 11-11 of Fig. 6, showing the parts in the same position as shown in Fig. 9. Fig. 12 is a plan showing a typical transmission gearing to which our change gear mechanism may be connected. Fig. .13 is an enlarged section taken on line 1.3-1.3 of Fig. 10 and showing its parts in one of their alternate positions. Fig. 14: is a. section taken as indicated by line 1& 14 of Fig. 13, showing the parts in their other alternate position.

Referring first particularly to Fig. 1 we have therein shown the body 20 of an automobile having transmission gearing 21 and having clutch lever 22. rlhe clutch is not shown in these drawings, not entering into the patentable combination therein; and it will suffice to say that when the pedal 22 is pushed to the right in Fig. l the clutch is opened and disconnected. VClutch pedal 22 is provided with any suitable extension 23 connected by a member 24, or any equivalent, to a small crank disk 25 on the end of an actuating shaft 26. Shaft 26 is mounted in bearings in casing 27 of our change gear device. Around one end of shaft 26 there are arranged two sleeves 28 and 29, sleeve 28 carrying an arm 30 and sleeve 29 carrying lao 30 and 31 connect with rods 32 and 33 which pass through and into the case of the transmission gear mechanism 21 and there operate gears by sliding them longitudinally in the ordinary and well known manner. The arrangement is such that the oscillation of arm 30 will cause the movement of rod 32 and thereby cause the shifting of pinion 34 within the change gear mechanism so that, when the arm 30 and rod 32 and pinion 34 are forward the transmission gearing is in its low arrangement, and when these parts are to the rear then the transmission is in its reverse arrangement Similarly, when the arm 31 and rod 33 and gear 35 are forward, the transmission gears are in their high speed arrangement7 while when these parts are to the rear the transmission gearing is in its intermediate speed arrangements.

rlhe mechanism about to be described is designed to move the arms 30 and 31 to their diiferent positions as elected by the operator pressing upon the appropriate one of levers 40, 41, 42 and 43, all pivoted at 44 upon a small bracket 45 mounted on steering post 46. These levers are so arranged that a downward pressure upon any one of them will cause such operation of the change gear mechanism as to throw the transmission gearing to the desired position when the clutch pedal 22 is pushed `forward and let back again. There is provided a tube 47 running up the side of steering posft 46 and containing three control wires 48, 49 and 50, each preferably arranged within flexible tubings 51 to make flexible pull connections between the steering post portions of the mechanism and the portions beneath the floor boards. Full wire 48 is connected directly with the end of lever 40 in such manner that a downward pressure on the manually engageable end of this lever will cause an upward pull on the wire 48. Lever 40 is the high lever and its actuation will cause the throwing of the transmission gearing to its high position when the clutch pedal 22 is operated. Pull wire 49 connects with both levers 41 and 42'; so that a pressure on the manually engageable end of either of these levers, being respectively the low and reverse levers, will cause the wire 49 to be pulled upwardly. the lever 43, which is the intermediate lever. But lever 41 has a lug 41EL which projects underneath the lever 40 and which will thereby cause the lever 40 to be operated whenever lever 41 is operated. This means that whenever the lever 41 is operated wires 48 and 49 will both be pulledy upwardly. And lever 42 has a similar lug 42a` which engages with tlie lever 43 in a similar manner,

Vso that the operation of the lever 42 will cause the pulling up of wires 49 and 50. It will thus be seen that the operation ofthe Wire 50 connects withy wires 48, 49 and 50 is as follows: When is' desired to throw the transmission gearing:

mediate arrangement, only the wire 50 isi pulled upwardly; when the reverse arrangement is desired, both wires 49 and 50 are and the high arrangepulled upwardly;

the wire 48 being pulled.

ment only requires upwardly.

scribed.

Ori the inside of case 29 carry arms 60 and 61, which two we may term the gear shifting arms. lThese arms have suitable slots 60t and 61' in their lower ends arranged opposite each other, in the manner shown in Figs. 6 and 11, so that either may be engaged by a tiltable driving lug 62 pivoted and carried by a driven member 63. This member 63 is the one referred to as the secondary mechanism or member. Driving lug 62 is pivoted at 64 on the member 63 and it has an extension or guide iinger 65 projecting downwardly from its pivot and adapted to follow on either side of ribs 66 which are arranged on the interior of the casing 27 under the pivot 64. There is a space or slot 67 between the two adjacent ends of ribs 66, through which slot the guide finger 65 may pass to go from one side to the other of the ribs. The driving lug 62 is manipulated by pulling upon the wire 49. Wire 49 connects directly with sleeve 70 which carries a lug 71 engaging under the upper end 7 2 of a yoke 7 3 whose lower' end connects directly at pivot 74 with the driving lug 62. A spring 7 5 normally presses the yoke 73 down and normally holds the driving lug in the position shown in Fig. 6, so that the guide linger 65 only travels on the side of lugs 66 at which it is shown in Fig. 6. With the guide finger in position as shown in Fig. 6, the lug 62 will engage in the slot 61a of arm 61, and any movement of driven member 63 will cause a movement of arm 61 and will cause a movement of arm 31 on the outside of the case. This is the arm which moves the transmission gears to effect the intermediate and high arrangements thereof. In other words, with the guide finger 65 on the left hand side of the ribs 66 (in' Fig. 6) either the intermediate or high arrangement of gearing will be effected. If it is desired to effect either the low or reverse arrangements of gearing it is necessary to pull upwardly onV wire 49 and to thereby throw the guide nger 65 through the slot 67 to the opposite sides of rib 66. The driving lug 62 will then engage in slot 60L of gear shifting arm 60 and arm-30 on the outside of the case will be operated. It thus being explained how selection is made be- 27 the sleeves 28 and arms The eect of these operationsof wires 48, 49 and 50 will be hereafter de tween the one group of intermediate and high and the other group of low andV reverse arrangements of transmission gearing, it remains to be explained how selection is secured in each of these groups between tlie two members thereof; that is, how selection is made between intermediate and high and between low7 and reverse.

Driven member 63 is loosely mounted on shaft 26 and does not necessarily move therewith except as it is connected to driving member 83 which is rigidly mounted on shaft 26. This driving member is the member referred to as being manually operable. The driven member 63 is normally held in the position shown in Fig. 7, hanging directly downwardly from sha-ft 26. `When in this position, the driving lug 62 must necessarily have carried each of the arms 60 and 61 to their central vertical position, these being the positions corresponding to the new trai position or arrangement of the transmission gearing. lVhen member 63 is in this neutral position it is engaged on opposite sides by suitable stop pins 84 and 85. These pins are mounted in suitable sleeves 86 and are normally pressed forwardly against the member 63 by means of springs 87, these springs being intended to move the stop pins 84 and 85 back to their normal positions shown in Fig. 11, after they have been moved therefrom by the operation of the mechanism. The stop pins are normally held in their positions shown in Fig. 11 by means of manually ycontrolled pins 88 and 89. These pinsy enter annular grooves in the stop pins and thus hold the pins from moving back against the pressure of their springs 87 and prevent the member 63 from moving from its normal central position until one or the other of the pins 88 and '89 is withdrawn. Pins 8.8 and 89 are pressed into position by means of springs 91; and they are withdrawn from position by the wires 48 and 50 which connect with sockets 92 on their upper ends. Thus a pressure on lever 40 will remove the pin 88 and will allow stop pin 84 to be pressed forwardly by the member 63, allowing member 63 to move forwardly to the position shown in Fig. 10.

Moving the member 63 foiuvardly will movey either one or the other of arms 30 and 31 forwardly and will cause the transmission gears to be thrown into either their low or high arrangement. As .before explained,r

selection between low or high is eifected by proper manipulation of the pull wire 49, the wire being pulled upon if low is desired and allowed to remain in normaly position if high is desired. Pulling upon wire 50 will cause the removal .of the pin 89 and will al-y low stop pin 85 to be pushed rearwardly when member 63 moves rearwardly as is shown in Fig. 8. In this position either the intermediate or reverse arrangement of the transmission gears is eiiected dependingk upon the selection made by proper manipu-V lation of pull wire 49.

The remaining portions of the mechanism about to be described consist in the means of connecting the members 63 and 83 together so that the member 63 may be moved as desired; means for locking the member 63 in either its forward or rearward position; and means for actuating the looking mechanism between the members 83 and 63 and between the stationary case or frame and the inember 63.

Member 63 has a suitable groove or slot in its lower end which is engageable by either ofy two spring pressed pins 101 and 102 set in suoli position as to locky the mem ber 63 in its forward or rearward position when one of the pins enters the slot 1700. These pins are pressed upwardly by comparatively light springs 103 and are so constructed with reference to the slot that they will enter easily thereinto. Member 63 carries a loose bolt 104 having a limited radial travel in member 63 in such manner that its lower end may be projected to practically fill the slot 100, as is best shown in Figs. 7 andv 9. Directly above the loose boltV 104 there is arranged a slidable locking bolt 105. This locking bolt has a projecting end 106 which is adapted toenter and engage in a suitable recess 107 in the member 63, the recess 10"? being opposite the slot 100 and in such position with relation to the loose bolt 104 that one end of the bolt 104 will always project into either slot 100 or recess 107. Locking bolt is radially slidable in diiv ing member 83 and has a relatively heavy spring 108 which presses it outwardly, the

spring 108 being stronger than either of the springs 103.

Pivoted at 110 to member 83 is an arm 111 which rests in a corresponding recess 112 of locking bolt 105. This arm carries a suitable cam 113, the arm and cam being rigidly connected and relatively immovable. The lower end of the cam 113 has a tooth or shoulder which is adapted to be engaged either by pawl 114 or pawl 115.y Pawl 115 is pivoted at 116 to the frame of themachine and pawl 114 is pivoted at 117 thereto. A spring 118 is arranged between the pawls in suoli manner as to tend to rotate them in,

Moveary:

by raise the locking bolt 105 from the po-,

sition shown in Fig. 9 toward the position shown in F 1g. 8 (relative to the member 83).

This means that the end 106 of the locking bolt is withdrawn upwardly from the recess 107 in member 63 and allows member 63 to remain in the position shown in Fig. 9 while member 83 moves toward the left to its normal position. The normal position of member 83 is shown in Fig. 8; this is the position in which it remains when the clutch is engaged and when the clutch lever 22 is in the position shown in Fig. 1. lt has been explained how movement of the clutch lever 22 (to open the clutch) will rotate the shaft 26 in the direction indicated in Fig. 1, being the same direction as indicated in the other figures; and how letting the clutch lever 22 back to position will rotate shaft 26 in the opposite direction and will move member 83 back to the position shown in Fig. 8. When member 83 has moved back to this position shown in Fig. 8 the cam 113 has been engaged by the pawl 115 and has slipped olf of that pawl and has passed on to be engaged by the pawl 114. Pawl 114 first engages the cam when the member 83 is directly on the radial line of locking pin 102; so that, when the member 83 has carried the member 63 to the position shown in Fig. 8, the locking bolt will be moved upwardly and will drop the member 63 in a position where the locking pin 102 will enter the slot 100 of the member 63 and hold it there in position. Pawl 115 is controlled inits action by a lever pivoted at 121 to the frame and having one end 120a engaging a lug 115a projecting outwardly from pawl 115 while the other end of lever 120 engages at 120b with manually operable pin 89. The arrangement is such that, when the pin 89 is withdrawn, the end 120LL of lever 120 will press down on the pawl 115 and move it to a position so that the cam 113 will pass over the pawl without being actuated by it. This means that when the wire 50 is pulled upon and the pin 89 released, the locking bolt 105 will not be moved in member 83 as the member 83 moves from the position shown in Fig. 9 toward the position shown in Fig. 7; but on arriving vat the position shown in Fig. 7 the cam 113 will then be engaged by the pawl 114 and, the locking bolt will be moved to disengage the member 63 and drop the member 63 in the position shown in Fig. 8.

Member 83 moves from the position shown in Fig. 8 to the position shown in Fig. 10 and back again, upon each actuation of the clutch pedal 22. Tn order to drop the member 63 in the position shown in Fig. 10, and in order to again pick it up from that position and carry to any of the other positions, we have provided certain apparatus which will now be described.

As before stated member 63 is normally in its central position as shown in Figs. 7 and 9. When the member 83 is moved from the position shown in Fig.l 8 to the position shown in Fig. 9 it will be seen that the locking bolt 105 will be pressed by its spring 108 directly into the recess 107 of member 63 and the member 63 will be carried on with the member 83 toward the position shown in Fig. 10. Upon reaching this position the locking bolt 105 is moved upwardly to the position shown in Fig. 10 by the action of a wedge which ,is pivoted at 131 to the frame ofthe machine and is held normally in the position shown in Figs. 7 and 8 by a spring 132 and a stop lug 133 which engages with the frame. The projecting end 134 of the wedge is pointed, as is shown in the drawings, and is adapted to ride up on a surface 135 of member 63 as is shown in Fig. 10. The point of the wedge engages beneath the surface 164 on the lower end of locking bolt 105, and as the wedge is moved upwardly toward the position'shown in Fig. 10 its moving end raises the locking bolt toward the position shown in that figure. The arrangement is such that the locking bolt is removed from the recess 107 when the member 63 reaches the position shown in Fig. 10. Removing the locking bolt from the'recess and removing its pressure from the loose bolt 104 allows the locking pin 101 to enter slot 100 of lower end of member63 and to lock Athe member as shown in Fig. 10. The wedge 130 will be held as shown in. Fig. 10 as long as the member 63 is in its position shown therein; and, as the member 83 moves back toward its normal i position the locking bolt 105 will be held up in the position shown in Fig. 10 until it has passed to a position where, when released to be pressed down by its spring 108, it will not enter the recess 107. Thus the member 83 will be unlocked from the member 63 and will be enabled to pass back to its original normal position without carrying the member 63 with it. Tt will be seen that, with the construction shown, it is not necessary that the bolt 105 be removed from the recess 107 with any extreme accuracy; that is, it is not necessary that the bolt leave the recess 'just as the member 63 moves to position over the locking pin 101. The member 63 is not only driven forwardly by the engagement of the locking bolt 105 with the recess 107, but is also driven in that direction by the engagement of a shoulder on member 83 with a shoulder 141 on member 63. 1n other words, these shoulders being permanent and immovable on their respective members, the member 63 is always carried forwardly when it is engaged by the member 83 but is not necessarily carried rearwardly; this arrangement beingfor the reason that the normal position of the member 83 is always to the rear of any position which member 63 may take..

1t being assumed that member 63 is now fili in the position shown in Fig. and that member 83 is in the position shown in Fig. 7 it will now be explained how, on the neXt forward movement of member 83, the mem- 5 ber 63 is picked up and carried rearwardly with the member 83; and it will then be understood how the member 83 alternately leaves and picks up the member 63 in and from the position shown for that member in Fig. 10. The wedge 130 is still held in the position shown in Fig. 10. Then the member 83 has passed to the position shown in Fig. 7 the bolt 105 has been dropped down (subject to .the action of the pawls 114 and 115) and, when the member 83 comes toward the position of Fig. 10 again the ybolt is pressed down as far as it may be by the spring 108. The bolt is raised by any suitable means, say by an inclined surface 142 on portion of member 63 which is first approached by the bolt, the bolt thendropping down into the recess 107. It will be seen that the bolt is then so `low that ythe surface 164 will pass entirely beneath the ypointed end of the wedge 130 and the wedgel will ride up over a surface 165 on the locking bolt 105, having no action tto press the bolt in either direction as the spring` 132 is comparatively weak. The bolt 105 will then slip into the recess 107, pressing the loose bolt 104 down and removing locking Lpin 101 from the member 63. This is shown in detail in Fig. 14, (Fig. 13 shows the parts in their positions shown in Fig. 10; while ig. 14 shows the parts in their positions as just described when the member' 83 comes forward for a second time and picks up the member 63 to carry it rearwardly.) The member' 63 is then carried rearwardly and will be dropped either in its central neutral position or will be carried on to its rearward position, depending on whether the pawl 115 is left in position or pressed down.

W'ith the foregoing description of the machine it is believed that the following description of its operation will be made clear: The member 63 normally rests in the position shown in Figs. 7 and 9 while the member 83 is normally in the position shown in Fig. 8. lVith member 63 in its normal central position the driving lug 62 mustr also be in its normal central position and the gear shifting'arms 60 and 61 must be in their normal central positions, which causes the 5 transmission gears to be in neutral. First let us supposefthat it is desired to Vthrow the transmission gearing into the low7 arrangement. The llever `41 is pressed upon, this movement causing both wires 48 and 49 0 to be pulled upwardly. This immediately causes `the driving lug'62 to be thrown to the position opposite tothat shown in Fig. 6, engaging the lug with the gear shifter arm -and it also causes .the pin 88 to be 5 withdrawn asis shown in Fig. 10. The

clutch lever is then operated and the yInclinber 83 travels from its normal position to the position shown in Fig. 9. The .locking bolt 105 immediately slips into place in the recess 107 and the lengaging shoulders 140 and 141 carry the member 63 forwardly with the member 83 to the Vposition shown in Fig. 10. Here the action of the wedge 130 causes the member 63 to be dropped and allows the locking pin 101 to hold the member 63 in position. Release of .the clutch pedal allows the member 83 to pass back to vits normal position. The Vgear shifter arm 60 has been carried forwardly with the member 63 and this causes the throwing of the transmission gearing' into the low ,arrangement. When itis desired to pass into the intermediate speed it is only necessary to press down upon the lever 43. This causes the wire 50 alone to be pulled upwardly, `the `wire 49 being left in its normal position. Movement of the clutch pedal will then-move the member 83 forwardly where it will pick up the .member 63 as hereinbefore described; upon the rearward movement of the member 83 the member 63 will move rearwardly toward kthe position shown in Fig. 8. y The pawl 115, being ypressed outwardly by the pulling of wire 50, will not engage with cam 113; and the member 63 will consequently be carried vpast its central neutral position and on to the .position shown in Fig. 8. And when the `parts reach this position the pawl 114 willengage thecam 113 and will move the locking bolt 105 so that it will disengage from recess 107, allowing the locking pin 102 to move up into slot 100 and lock the member 63 into the position shown. lIn the meantime the driving lug 62 has been carried with the member 63L but, upon the guide finger 65 reaching the slot 67 between the twoy ribs 66, it will immediately pass throughthe slot on account of the pressure of spring 75. The passage of the guide linger through the slot means that the lock 62 will disengage the gear shifter arm 60 and will immediately engage the gear shifter arm 61. The gear shifter arm 60 is thus left in its neutral position and gear shifter arm 61 is carried to the rear with the further movement of member 63. Carrying gear shifter arm to the rear means that the transmission gears are placed in their intermediate arrangement, as hereinbefore described. When it is desired to go into the high arrangement it is only necessary to press down upon lever 40 whichcauses the upward movement of pull wire 48 and causes the removal of pin 88 from normal position. rlhis releases the .locking pin 84 and allows the member 63 to be carried forward with the member 83 as far as that member will travel. As before noted, the member 63 will always travel forwardly with the member 83 `as far as lthe member 83 travels. If it had been desired to put the gears into neutral position from intermediate position all that would be necessary would be merely to press on the foot pedal without pressing upon any of the speed levers. The locking pin 84 would stop both member 63 and member 83 in the central neutral position as is shown in Fig. 9, and upon release of the clutch pedal the member 83 would travel back to its position shown in Fig. 8. 1n fact, when it is desired to put the mechanism in neutral position from any speed position it is only necessary to operate the clutch pedal without operating any of the speed levers. It will be seen that the member 83 will pick up the member 63 from either of its positions; and if it picks up the member 63 in its forward position and moves it rearwardly then the pawl 115 will cause the operation of cam 113 to drop the inember 63 in its neutral position. lf it picks up the member 63 in its rear positionthen the operation of the locking pin 8&1 will be to stop the movement of both members .in the central'position, and the pawl 115 will then engage with cam 113 to move the locking bolt 105 to leave the member 63 in its neutral central position when the member 83 moves rearwardly.

Having described our invention, we claim:

1. The combination with a shaft, a clutch therefor, a pedal for operating the clutch, and a transmission mechanism inc riding sets of shiftable power transmission elements, of transmission selecting and shifting mechanism comprising a driving member connected to and operated by the clutch pedal, a driven member capable of movement with the driving member operatively connected to the transmission elements, means for locking the driven member in diiferent positions to hold in 'and out of action different transmission elements, means for locking the members together for common movement, and manually controlled means to caiise freeing of the driven member from the driving member and to cause the locking of the driven member stationarily in any selected position.

2. The combination with a. shaft, a clutch therefor, a pedal for operating the clutch, and a transmission mechanism including sets of shiftable power transmission elements, of transmission selecting and shifting mechanism comprising an oscillating driving member connected to and operated by the clutch pedal, an oscillating driven member capable of movement with the driving member operatively connected to the transmission elements, means for locking the driven member in different positions to hold different transmission elements in and out of action, means for locking the members together for common movement, and manually controlled means to cause freeing of the driven member from the driving member and to cause the locking of the driven meinber stationarily in any selected position.

3. The combination with a shaft, a clutch therefor, a pedal for operating the clutch, and a transmission mechanism including sets of shiftable power transmission elements, of transmission selecting and shifting mechanism comprising an oscillating driving member connected to and operated by the clutch pedal, an oscillating driven member pivoted concentrically with the driving member and capable of movement therewith operatively connected to tlieti'ansmission elements, means for locking the driven member in different positions to hold different transmission elements in and out of action, means for locking the members together for common movement, and manually controllable means to cause the freeing of the driven member' from the driving member and to cause the locking of the driven member stationarily in any selected position.

1. rThe combination with a shaft, a clutch therefor, a pedal for operating the clutch, and a transmission mechanism including sets of shiftable power transmission elements, of transmission selecting and shifting .mechanism comprising an oscillating driving member connected to and operated by the clutch pedal, an oscillating driven member pivoted concentrically with the driving member and capable of movement therewith operatively connected to the transmission elements, means for locking the driven member in different positions to hold the different transmission elements in and out of action, means for mechanically locking the members together for common movement, and manually controllable means to canse freeing of the driven member from the driving member and to cause the locking of the driven member stationarily in any selected position. i

5. rlhe combination with a shaft, a clutch therefor, a pedal for operating the clutch, and a transmission mechanism including sets of shiftable power transmission eldineiits, of transmission selecting and operating mechanism comprising a driving member connected to and operated. by the clutch pedal, a driven member capable of movement with the driving member operativelv connected to the transmission elements. means for locking the driven member iii dif-l ferent positions to hold different transmission elements in and out of action, means for mechanically locking the members together for common movement, and manually controllable means to cause freeing of the driven member from the driving member and to cause the locking of the driven member stationarily in any selected position.

6. The combination with a shaft, a clutch therefor, a pedal for operating the clutch, and a transmission mechanism including sets of shiftable power transmission 'elements, of transmission selecting and shifti g mechanism comprising a movable driving member connected to and operated by the clutch pedal, a driven member capable of movement with the driving member operatively connected to the transmission elements so that movement of the driven niember will shift said elements, means for loclring the driven member stationarily in different positions to hold in and out of action different' transmission elements, said means embodying locking pins at different positions and an aperture in the driven member adapted to receive the locking pins, means for locking the driving and driven members together for common movement embodying a bolt on the driving Vmember adapted to enter the aperture in the driven member and to force the locking pins therefrom, and means capable of being manually set to cause the retraction of said bolt from the aperture inthe driven member upon subsequent manual operation of the driving member. f Y

7. The combination with a shaft, a clutch therefor, a pedal for the clutch, and a transmission mechanism iiicluding sets of shiftable power transmission elements, of transmission selecting and shifting mechanism comprising a stationary frame, a pivoted oscillating driving member having a normal position at one end of its movement of oscillation connected to and operated by the clutch pedal, a concentrically pivoted oscillating driven member operatively connected to said transmission elements so that movement of the driven member will shift said elements, said driven member having a normal position central of its movement of oscillation, means for locking the driven member stationarily in positions at opposite sides of its normal central position, said means embodying a pair of locking pins one at each side of said central normal position and an aperture in the driven member adapted to receive either of said pins, means to lock the driving and driven members together embodying a bolt on the driving member adapted to enter said aperture and to force either of said pins therefrom, and means cooperative with said bolt capable of being manually setto cause the retraction of said bolt from said aperture upon subsequent manual operation of the driving means when the driven member has reached its central normal position moving with the driving member.

S. A mechanism of the character described. comprising a stationary frame, a manually operable driving member movable with reference thereto, a driven member movable with the driving member, inan-V ually releasable means for normally holding said driven member immovable in its normal position, cooperative locking means on the driven member and the frame, connection means between the driving and driven members, and manually controlled means for releasing the connection between the driving and driven members.

9. rl, mechanism of the character described, comprising a stationary frame, a manually operable pivoted oscillating driving member movable with reference thereto, a driven member pivoted concentrically with the driving member and oscillatingly movable therewith, manually releasable means for normally holding said driven member immovable in its normal position, cooperative locking means on the driven member and the frame, connection means between the driving and driven members, and manually controlled means for releasing the connection between the driving and driven members.

10.A mechanism of the character described, comprising a stationary frame, a manually operable pivoted oscillating driving member movable with reference thereto and having a normal position at one end of its movement of oscillation, a driven member pivoted concentrically with the driving member and oscillatingly movable therewith having a normal position central of its movement of oscillation, manually releasable means for normally holding said driven member in its normal central position, cooperative locking means on the driven member and the frame, connection means between the driving and driven members, and manually controlled means for releasing the connection between the driving and driven members.

1i. A mechanism ofthe character described, comprising a stationary frame, a manually operable driving member movable with reference thereto, a driven member movable with the driving member, manually releasable means normally holding said driven member immovable in its normal position, said means embodying plungers one on each side of said driven member and manually releasable means for normally holding said plungers immovable, coperative locking means on the driven member and the frame, connection means between the driving and driven members, and manually controlled means for releasing the connection 'between the driving and driven members.V i

1Q. A mechanism of the character described, comprising a stationary frame, a manually operable pivoted oscillating driving member movable with reference thereto and having a normal position at one end of its movement of oscillation, a

iasV

driven member pivoted concentrically with the driving member and oscillatingly movable therewith having a normal position central of its movement of oscillation, manually releasable means for normally holding said driven member in its normal central position, said means embodying releasable stops one on each side of said driven member to prevent its movement in either direction, coperative locking means on the driven member and the frame, connection means between the driving and driven members, and manually controlled means for releasing the connection between the driving and driven members.

13. A mechanism or' the character de scribed, comprising a stationary frame, a manually operable pivoted oscillating driven member movable with reference thereto and having a normal position at one end of its movement of oscillation, a driven member pivoted concentrically with the driving member and oscillatingly movable therewith having a normal position central of its movement of oscillation, manually releasable means for normally holding said driven member in its normal position, said means embodying plunger-s one on each side of said driven member and manually releasable means for normally holding said plungers immovable, coperative locking means on the driven member and the frame, connection means between the driving and driven members, and manually controlled means for releasing the connection between the driving and driven members.

111-. A mechanism of the character described, comprising a stationary frame, a manually operable driving member movable with reference thereto, a driven member movable with the driving member, manually releasable means for normally holding said driven member immovable in its normal position, coperative locking means on the driven member and the frame, said means embodying locking pins on the iframe and an aperture in said member adapted to receive the locking pins, connection means between the driving and driven members, and manually controlled means for releasing the connection between the driving and driven members.

15. A mechanism oli the character described, comprising a stationary frame, a manually operable pivoted oscillating driving member' movable with reference thereto and having a. normal position at one end of its movement of oscillation, a driven member pivoted concentrically with the driving member and oscillatingly movable there with having a normal position central of its movement of oscillation, manually releasable means Jfor normally holding said driveny member in its normal central position, said means embodying releasable stops one on each side of said member to prevent its movement in either direction, coperative locking means on the driven member and the frame, said means embodying locking pins on the frame and an aperture in said member adapted to receive the locking pins, connection means between the driving and driven members, and manually controlled means for releasing the connection between the driving and driven members.

16. A mechanism of the character described, comprising a stationary frame, a manually operable driving member movable with reference thereto, a driven member movable with the driving member, manually releasable means for normally holding said driven member immovable in a normal Ycentral position, coperative locking means on the driven member and the frame, said means embodying locking pins on the frame one on each side of the normal central position of said member and an aperture in said member adapted to receive the locking pins, connection means between the driving and driven members, and manually controlled means for releasing the connection between the driving and driven members.

17. A' mechanism of the character described, comprising a stationary frame, a manually operable pivoted oscillating driving member movable with reference thereto and having a normal position at one end of its movementof oscillation, a driven member pivoted concentrically with the driving member and oscillatingly movable therewith having a normal position central of its movement of oscillation, manually releasable means for normally holding said driven member in its normal central position, said means embodying releasable stops one on each side of said member to prevent its movement in either direction, coperative locking means on the driven member and the frame, said means embodying locking pins on the frame one on each side of the normal central position of said member and an aperture in said member adapted to receive the locking pins, connection means between the driving and driven members, and manually controlled means for releasing the Connection between the driving and driven members.

18. A mechanism of the character. de-

scribed, comprising a stationary frame, a manually operable driving lmember movable with reference thereto, a driven member movable with the driving member, manually releasable means for normally holding said driven member immovable in its normal position, driven member and the frame, connection means between the driving and driven members embodying a movable bolt on the driving member and an aperture in the driven member adapted to receive said bolt, and

coperative locking means on the manually controlled means for causing movement of the bolt -to release the connection between the driving andl driven members. Y I9. A mechanism of the character described, comprising a stationary frame, a manually operable driving` memberI movable with reference thereto, a driven member movable with the driving member, manually releasable means for normally holding; said driven member immovable in its normal position, cooperative locking means on then driveny member and the frame, said meansembodying locking pins on the frame andan aperture in said member adapted to receive the locking pins, connection means between the` driving and driven members embodying a movablel bolt on the driving member adapted to enter saidaperture in the' driven member and by said entry to force either of said locking` pins from said aperture, and manually controlled means for causing movement of the bolt to release n the connection between the driving and driven members;

20. A mechanism ot the character described, comprising a stationary frame, a manually operable pivoted oscillating drivingmember` movable with reference thereto and having. a; normal' position at one end of its' movement oi? oscillation, a driven member` pilvotedf concentrically with the driving member a-ndf oscil'latingly movable therewithf having 2v normalA position central of its movement. of oscillation, manually releasable means forv normally holding said driven member in' its normal central position, said means embodying releasable stops one on each side of said member to prevent its movement in' either direction', coperativeX locking means on the driven member and the frame, said means embodying' locking pins on the" trame one' onv each side of thenormal centralf position ofsaid member and an aperture said member adapted to receive; the locking. pins, connection means between thev driving and driven members embodying movable bolt on the driving member and an aperture in the driven member adapted' to receive said bolt, and manually controlled means for causing movement of" the bolt to release the connection between the driving and driven members.

21. AL* mechanism ot the character described; comprising a stationary frame, a manually operable pivoted oscillating driving member movable with reference thereto andliaving anormal-position at one'end of itsmovementf of oscillation, a' driven member pivotedconcentrically with the driving member' and voscillatingly 'movable therewith having a normal position central of its movement of oscillation, manually releasable means for normally holding said driven member in its :normal central position, said means embodying releasable stops one on each sider of said member to prevent its movement in either direction, coperative locking means on the driven member and the frame, said means embodying locking pins on the frameone on each side of the normal central position of said member and an apertue in said member' adapt-ed to receive the locking pins, connection means between the driving and driven members embodying a movable bolt on the' d-rivingmember adapted to enter said aperture in the driven member and by said entry to force either of said locking pins from` said aperture', and manually controlled means for causing movement of the bolt to release the connection between the driving and driven members.

A mechanism of the character described,y comprising a stationary frame, a manually operable driving member movable with reference thereto', a driven member movable with the driving member, manually releasable means for normally holding said driven member immovableA in its normal position, coperative' locking means on the driven member and the frame, connection means between; the driving and driven members embodying a movable. bolt on Vthe `driving member' and anaperture in the driven member adaptedto receive said bolt, and manually controlled means for releasingthe connection between the dri-vingA and driven members embodying means cooperative with said bolt to cause the bolt to be raised out of the aperture inthe driven member upon movement of the driving member in one direction.

A mechanism of the character described, comprising a'A stationary fra-me, a manu allyv operable driving member movable with reference thereto, a driven member movable Awiththe driving member, manually releasable means for normally' holding said driven member immovable in its normal position, coperative locking means on the driven member and the frame, connection means between the dri-vingand driven members embodying amovablebolt on the driving member and an aperture in the driven member adapted toAv receive said bolt, and manually controlled means for releasing the connection between'the driving and driven members embodying` means cooperative with said bolt: toy cause the bolt to be raised out of the aperture in the'driven member upon movement of the driving member toward its normalv position;

24; A; mechanism ofthe' character described,- comp'rfising a stationary frame, a manually operable driving member movable with reference' thereto, a driven member movable with the driving member, manually releasablemeans for normally holding` said driven member immovable in its-normal poi cn sition, cooperative locking means on the driven member andthe frame, connection means between the driving and driven members embodying a movable bolt'r on the vdriving member and an aperture in the driven member adapted to receive said bolt, and'manually controlled means for releasing the connection between the Y driving andV driven members embodying a cam mounted upon the driving member connected with said bolt and a manually movable pawl adapted to engage the cam upon movement of the driving member to cause the cam -to move relatively to the 'drivingV member, saidV cam by said movement moving the Vbolt to Withdraw it from the aperture in the driven member. Y Y

25. A mechanism of the character described, comprising .a stationary frame, a manually operable pivoted oscillating driving member movable with reference thereto and having a normal position at one end of its movement of oscillation, a driven member pivoted concentrically with the driving member and oscillatingly movable therewith having a normal position central of its` movement of oscillation, manually releasable means for normally holding said driven member in its normal central position, said means embodying releasable stops one at Veach side 'of said lmember to prevent .its

movement in either direction, cooperative locking means on the driven member and the frame, said means embodying locking pins on the frame one on each side of the normal position of said member and an aperture 4in said member adapted to receive the locking pins, connection means between the driving and driven members embodying a movable bolt on the driving member adapted to enter said aperture on the driven member and byy said entry to 'force either of said locking pins from said aperture, and man-4 ually controlled means for releasing the connection between the driving and driven members embodying means coperative with said bolt to cause the bolt to be raised out of the aperture in the driven member upon movement of the driving member toward its normal position.

26. A mechanism of the character described, comprising a stationary frame, a manually operable pivoted oscillating driving member movable with reference thereto and having a normal position at one end of its movement of oscillation, a driven member pivoted concentrically with the driving member and oscillatingly movable therewith having a normal position central of its movement of oscillation, manually releasable means for normally holding said driven member in its normal position, said means embodying releasable stops one at each side of said member to prevent its movement in either direction, cooperative locking means Vdriven members embodying a movable boltV Von the Vdriving member adapted to enter said aperture 1n the driven member and byV said entry to torce either or said locking pins from said aperture, and manually controlled Vmeans for releasing the connection between the driving and driven members embodying a cam mounted upon the drivling member connected with said bolt and a manually movable pawl adapted to engage the cam upon movement of the Vdriving member thereby causing the cam toY move relatively to the driving member, said cam by said movement moving the bolt to withdraw it from the aperture in the driven member.

27. A mechanism of the character described, comprising a stationary frame, a manually operable pivoted oscillating driving member movable with reference thereto and having a normal position at one end of its movement of oscillation, a driven member pivoted concentrically with the driving member and oscillatingly movable therewith having a normal position central of its movement of oscillation, manually releasable means for normally holding said driven member in its normal position, said means embodying releasable stops one at each side of said member to prevent its movement in either direction, cooperative locking means on the driven member and the frame, said means embodying locking pins on the frame one on each side of the normal central position of said'member and an aperture in said member adapted to receive the locking pins, connection means between the driving and driven members embodying a movable bolt on the driving member adapted to enter said aperture in the driven member and by said entry to force either of said locking pins from said aperture, manually controlled means for releasing the connection between the driving and driven members embodying a cam mounted upon the driving member connected with said bolt and a manually movable pawl adapted to engage the cam upon movement of the driving member thereby causing the cam to move relatively to the driving member, said cam by said movement moving the bolt to withdraw it from the aperture in the driven member as the driven member reaches its normal central position, means to engage said cam as the driving member approaches its normal position at one end of its stroke to withdraw therbolt from said aperture just as the aperture registers with the locking pin at that end of the stroke, and means controlledl by the movement of the driven member with the driving member to engage the bolt as the driving member approaches the other end of its stroke to Withdraw the bolt from the aperture just as the aperture registers with the locking pin at that end of the stroke.

28. A mechanism of the character de scribed, comprisingj)` a stationary frame, a manually operable driving member movable back and forth with reference thereto having a normal position aty one end of its stroke, a driven member movable with the driving, member having a normal position central of its stroke, manually releasable means for normally holding the driven member immo 7able in its normal central position, means for locking the driven member in either of two positions one at each end ol its stroke, means for connecting the driving` and driven n'iembers together7 manually operable means for causing` release of connection between said members as the driven member reaches its normal central position7 and means controlled by the driven member moving` with the driving,` member to canse release of said connection as the driving and driven members approach the end of their stroke opposite the normal position of the driving member.

In Witness that We claim the foregoing We have hereunto subscribed our names this 8th day of June 1912.

GERALD A. EDDY. JOHN FRANKLIN MGNUTT.

fitnesses WV. L. AsMon, EDWARD H. BARKELEW.

Copies of this patent may be obtained for five cents each, by'addressng the Commissioner of Patents, Washington, D. C. 

